Submission #683940

#	Time	Username	Problem	Language	Result	Execution time	Memory
683940		thegamercoder19	Stove (JOI18_stove)	C++14	0 / 100	1 ms	212 KiB

stove

/*
Coded by thegamercoder19
GL
*/
#define _CRT_SECURE_NO_WARNINGS
#include <bits/stdc++.h>

#define M_PI       3.14159265358979323846
#define FILER 0
using ll = long long;
using ull = unsigned long long;
using ld = long double;
const ll MOD = pow(10, 9) + 7;
const ll INFL = 0x3f3f3f3f3f3f3f3f;
const ull INFUL = 0x3f3f3f3f3f3f3f3f;
const ll INFT = 0x3f3f3f3f;
const ull MAX = 1LL << 24;
const ll MODD = 998244353;
const double EPS = 1e-10;
#define V vector
#define pll pair<ll, ll>
#define pull2 pair<ull,ull>
#define MS multiset
#define M map
#define Q queue
#define PQ priority_queue
#define IOF ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
#define FOR(typ,i,a,b,c) for(typ i = a; i < b; i += c)
#define FORR(typ,i,a,b,c) for(typ i = a; i > b; i -= c)
#define FORA(a,i) for(auto &i : a)
#define all(v) v.begin(),v.end()
#define sz(v) v.size()
#define sorta(a) sort(all(a))
#define sortd(a) sort(all(a), greater<ll>())
#define setp(x) setprecision(x)<<fixed
#define RET return
#define log(a,b) log(b)/log(a)
#define WH(s) while(s)
#define WHI(t) WH(t--)
#define YES cout<<"YES"<<endl;
#define NO cout<<"NO"<<endl;
#define Yes cout<<"Yes"<<endl;
#define No cout<<"No"<<endl;
#define YESNO(s) cout << (s ? "YES" : "NO") << endl;
#define YesNo(s) cout<<(s?"Yes":"No")<<endl;

#define TYP 0
using namespace std;
ll n, k;
V<ll> a;
V<V<ll>> dp;
void solve()
{
    cin >> n >> k;
    dp.resize(n + 1, V<ll>(k + 1));
    a.resize(n + 1);
    FOR(ll, i, 1, n + 1, 1)cin >> a[i];
    FOR(ll, i, 1, n + 1, 1)dp[i][1] = dp[i - 1][1] + a[i] - a[i - 1];
    FOR(ll, i, 1, n + 1, 1)
        FOR(ll, j, 2, k + 1, 1)
        dp[i][j] = min(dp[i - 1][j]  + a[i] - a[i - 1], dp[i - 1][j - 1] + 1);
    cout << dp[n][k] << endl;


}
void init()
{


    if (FILER)
    {
        freopen("pump.in", "r", stdin);
        freopen("pump.out", "w", stdout);
    }
}

void handle()
{
    init();
    ll t = 1;
    if (TYP)cin >> t;
    WHI(t)solve();
}

int main()
{
    IOF
        handle();
    RET 0;
}

Compilation message (stderr)

stove.cpp: In function 'void init()':
stove.cpp:73:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   73 |         freopen("pump.in", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
stove.cpp:74:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   74 |         freopen("pump.out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 50